#### Answer

$13$

#### Work Step by Step

$\log _{1/2}\left( x+3\right) =-4\Rightarrow \left( x+3\right) =\left( \dfrac {1}{2}\right) ^{-4}\Rightarrow x+3=16\Rightarrow x=13$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$13$

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.